IESVS. | ALLEGAÇOES | DE DIREITO, QVE SE |offereceram ao muito alto, & | muito poderoso Rei Dom | HENRIQVE nosso | Señor na causa da soccessaõ | destes Reinos por parte da| Senhora Dona Catherina | sua sobrinha filha do Iffan | te dom Duarte seu irmão | a 22. de Outubro de | M.D.L.XXIX.- Almeirim: Impressas per Antonio Ribeiro & Francisco Correa, 1580.- [6], 128 f.: 2 gravuras; 30 cm.- E. An important specimen in the 16th century Portuguese bibliography, namely because it was printed in Almeirim and also because most of the known copies are either imperfect or incomplete, unlike the present one, a little cropped but in very good condition. The first sheet is especially rare, with the woodcut representation of D. Catarina's coat of arms (flattery), which is missing in most of the copies. The second engraving, on the fifth preliminary sheet (f. A5), with the family tree up to King D. Manuel I and D. Maria I, is also unusual. D. Catarina (1540-1614), Infanta of Portugal, was the second daughter of Infante D. Duarte, Duke of Guimarães, son of King D. Manuel I; she was a strong candidate for the throne of Portugal in the crisis of 1580, as she was heiress by manhood, while Philip II of Spain was the son of the Infanta D. Isabel (married to Charles V). Small cut on title page, affecting five letters on the front and 18 on the back, carefully redone. Minor tear on the outer edge of sheet 87, without lack of support. Otherwise, a complete copy, very clean and with large margins. Contemporary binding, entire flexible parchment, with minor imperfections. Samodães, 1855. Anselmo, 987. National Library (16th century), 6. King D. Manuel II of Portugal Library, 3.